Right now is a funny time to be getting a high-end camera, as in, IMO, disadvantageous.

Supplies are low due to several factors, like the earthquake killing production for months, altering supply-demand, keeping prices high at end-of-cycle time.

As is often talked about, it's time for D4, D800, and D400, all of which could be good for you too. Or at least they could help lower prices on your current choices for FX.

Cynically speaking, they could all be so expensive that they would not lower prices on current choices.

Not directly answering your question, I realize, but at current, if I wanted to get into FX, used D3 seems to be the best value at around 3000-3500, followed by new D700
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http://www.sportsshooter.com/cyadmark
Ann Arbor, MI USA